Intel Arc A380M vs Intel Arc Pro B70 Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the Intel Arc A380M versus the Intel Arc Pro B70. The winsA and winsB fields both register zero, meaning the two GPUs have never been evaluated side by side in the same test suite within this database. This absence of direct comparison data is itself informative: the two cards occupy entirely different segments, and no workload has been run on both to produce a comparative score.

Without benchmark deltas, the closest proxy for relative performance lies in the raw compute and memory throughput figures. The Intel Arc Pro B70 delivers 22.94 TFLOPS FP32 against the A380M's 4.096 TFLOPS, a ratio of roughly 5.6 to 1. Pixel throughput scales similarly: 358.4 GPixel/s versus 64.00 GPixel/s, which is approximately 5.6 times higher. Texture rate shows the same multiplier pattern, 716.8 GTexel/s against 128.0 GTexel/s, again about 5.6 times. The consistency of these ratios suggests the B70's advantage is structural rather than workload-specific, driven by a much larger execution resource pool.

Memory bandwidth tells a similar story. The B70 offers 608.0 GB/s over a 256 bit bus, while the A380M manages 186.0 GB/s on a 96 bit interface. That is a 3.27 times bandwidth advantage. The B70 also carries 32 GB of GDDR6 memory versus 6 GB on the A380M, a 5.33 times capacity lead. For workloads that saturate memory, such as large model inference or high resolution texture streaming, the B70's margin will widen beyond the raw compute ratio.

Clock speeds add another layer. The B70 boosts to 2800 MHz from a 2280 MHz base, while the A380M boosts to 2000 MHz from 1550 MHz. The B70's base clock is 47% higher than the A380M's boost clock, indicating that even at idle operating points the larger chip runs faster. Memory clocks also diverge: 2375 MHz with 19 Gbps effective on the B70 versus 1937 MHz with 15.5 Gbps effective on the A380M.

The absence of head-to-head scores means the database cannot confirm real-world deltas, but the theoretical peak rates point to a decisive B70 lead across every measurable axis. The A380M's 50th percentile ranking among all GPUs matches the B70's 50th percentile, an artifact of both cards having no benchmark scores recorded rather than evidence of parity. Percentile fields with zero avgBenchmarkScore do not reflect tested performance; they simply place untested hardware at the median.

Architecture Differences

The two GPUs come from different Intel generations. The A380M uses the DG2-128 chip built on Xe-HPG architecture, part of the Alchemist generation for Arc 3 Mobile. The B70 uses the BMG-G31 chip on Xe2-HPG architecture, part of the Battlemage Pro Series. This is a generational leap, not a minor revision. Xe2-HPG represents a second-generation design that reworks the execution pipeline relative to the original Xe-HPG.

Process technology differs as well. The A380M is fabricated on a 6 nm process at TSMC, while the B70 uses a 5 nm process, also at TSMC. The die size gap is substantial: 157 mm² for the A380M versus 368 mm² for the B70. Transistor counts cannot be compared directly because the B70's transistor total is listed as unknown, while the A380M carries 7,200 million transistors with a density of 45.9M per mm². The B70's larger die on a smaller node implies a considerably higher transistor budget, but the database does not record the figure.

Execution resources differ by a factor of four. The A380M has 1024 shading units, 64 TMUs, 32 ROPs, and 8 ray tracing cores. The B70 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. Every count on the B70 is exactly four times the A380M's count. This uniform 4x scaling suggests the B70 is built from four times as many sub-slices or render slices, a clean architectural multiplier that the clock and memory differences then amplify.

Memory architecture changes fundamentally. The A380M uses a 96 bit bus with 6 GB GDDR6, while the B70 uses a 256 bit bus with 32 GB GDDR6. The bus width quadruples, matching the shading unit multiplier. Bandwidth scales from 186.0 GB/s to 608.0 GB/s, a 3.27 times increase that reflects both the wider bus and the faster 19 Gbps effective memory speed. The A380M's 15.5 Gbps effective memory speed trails by 22.6%.

Form factor and interface differ sharply. The A380M is an MXM module using the MXM-A (3.1) bus interface, designed for portable devices with device-dependent display outputs. The B70 is a dual-slot card using PCIe 5.0 x16, with a 267 mm length, 110 mm height, and 39 mm width, and it carries 1x HDMI 2.1a plus 3x DisplayPort 2.1 outputs. Power delivery also diverges: the A380M draws 35 W with no power connector listed, while the B70 draws 230 W with a single 8-pin connector and a suggested PSU of 550 W.

API support is identical on paper: both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The underlying hardware implementations differ, but the exposed feature levels match. The B70's newer architecture does not translate into a higher API version in the database records.

Where Each One Wins

The A380M wins in power efficiency and physical versatility. Its 35 W TDP is a fraction of the B70's 230 W, a 6.57 times difference. For thermally constrained systems, compact chassis, or battery-powered portable devices, the A380M is the only viable option among the two. Its MXM module form factor and MXM-A (3.1) interface target upgradeable laptops and embedded systems where a dual-slot PCIe card cannot fit. The A380M's 157 mm² die also suggests lower manufacturing cost per unit, though the database does not record pricing for this card.

The A380M also wins on release timing. It launched on January 23, 2023, while the B70 arrived on March 25, 2026. The A380M has been available in the market for over three years longer, making it a mature product with established driver support and ecosystem integration. The B70's newer release means less time for software optimization across the application landscape.

The B70 wins on every raw performance metric. Compute throughput, pixel fill, texture fill, memory bandwidth, memory capacity, clock speeds, and execution resource counts all favor the B70 by wide margins. The 32 GB memory capacity is particularly significant for professional workloads: large 3D scenes, high resolution video editing, machine learning inference, and scientific visualization all benefit from capacity that the A380M's 6 GB cannot approach. The 608.0 GB/s bandwidth supports feeding 4096 shading units without starvation, while the A380M's 186.0 GB/s must serve only 1024 units, a per-shader bandwidth ratio that favors the smaller card but an absolute figure that favors the larger one.

The B70's display outputs give it an advantage in multi-monitor professional setups. Three DisplayPort 2.1 ports and one HDMI 2.1a output support high refresh rate and high resolution displays, while the A380M's outputs are listed as portable device dependent, meaning the manufacturer of the host device determines connectivity. The B70's PCIe 5.0 x16 interface provides substantially more host bandwidth than the A380M's MXM-A 3.1, which matters for data transfer between CPU and GPU in compute workloads.

The B70's dual-slot cooling solution and 550 W suggested PSU indicate a desktop workstation orientation, where power and space are less constrained. The A380M's 35 W envelope allows passive cooling in some implementations, though the database does not specify the cooling solution.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Intel Arc Pro B70 delivers 22.94 TFLOPS FP32, which is 5.6 times the A380M's 4.096 TFLOPS.

Q: How much memory bandwidth do the two cards provide?

A: The B70 provides 608.0 GB/s over a 256 bit bus, while the A380M provides 186.0 GB/s over a 96 bit bus. The B70's bandwidth is 3.27 times higher.

Q: What are the memory capacities of each card?

A: The B70 has 32 GB of GDDR6 memory, while the A380M has 6 GB of GDDR6 memory, a 5.33 times capacity difference.

Q: Do both cards support the same API feature levels?

A: Yes, both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 in the database records.

Q: What is the TDP difference between the two?

A: The A380M draws 35 W, while the B70 draws 230 W. The B70 consumes 6.57 times more power.

Q: What launch dates are recorded for each card?

A: The A380M launched on January 23, 2023, and the B70 launched on March 25, 2026.

The Verdict

The recorded data supports a clear segmentation. The Intel Arc Pro B70 is the superior performer by every measured specification: 5.6 times the FP32 throughput, 5.33 times the memory capacity, 3.27 times the bandwidth, and 4 times the shading units, TMUs, ROPs, and ray tracing cores. Its 2800 MHz boost clock exceeds the A380M's 2000 MHz boost by 40%. For any workload where compute throughput, memory capacity, or display connectivity determines outcomes, the B70 is the only defensible choice.

The Intel Arc A380M occupies a niche the B70 cannot serve. Its 35 W power draw enables deployment in portable devices, MXM-based systems, and thermally constrained environments. Its smaller 157 mm² die and 7,200 million transistor count indicate a less complex part. The A380M's earlier release date of January 23, 2023 also means it has been available for a longer period, though the database does not record benchmark data to quantify maturity.

Neither card has recorded benchmark scores or head-to-head results in the database. The percentile fields for both sit at 50 with zero average benchmark scores, reflecting untested status rather than measured parity. Buyers selecting between these two cards face a straightforward trade: maximum performance and professional features from the B70, or minimal power draw and portable form factor from the A380M. The B70 carries a launch MSRP of 949 USD, while the A380M has no recorded launch MSRP.

The B70's PCIe 5.0 x16 interface, dual-slot cooler, and 550 W suggested PSU confirm its workstation orientation. The A380M's MXM-A (3.1) interface and portable device dependent display outputs confirm its mobile orientation. These are not competing products in the same segment; they are complementary solutions for different physical and thermal envelopes.

Specification Differences

| Specification | Intel Arc A380M | Intel Arc Pro B70 |

|---|---|---|

| Chip | DG2-128 | BMG-G31 |

| Architecture | Xe-HPG | Xe2-HPG |

| Generation | Alchemist (Arc 3 Mobile) | Battlemage (Pro Series) |

| Process Node | 6 nm | 5 nm |

| Foundry | TSMC | TSMC |

| Die Size | 157 mm² | 368 mm² |

| Transistors | 7,200 million | unknown |

| Base Clock | 1550 MHz | 2280 MHz |

| Boost Clock | 2000 MHz | 2800 MHz |

| Memory Clock | 1937 MHz, 15.5 Gbps effective | 2375 MHz, 19 Gbps effective |

| Memory Size | 6 GB | 32 GB |

| Memory Type | GDDR6 | GDDR6 |

| Memory Bus Width | 96 bit | 256 bit |

| Memory Bandwidth | 186.0 GB/s | 608.0 GB/s |

| Shading Units | 1024 | 4096 |

| TMUs | 64 | 256 |

| ROPs | 32 | 128 |

| Ray Tracing Cores | 8 | 32 |

| Pixel Rate | 64.00 GPixel/s | 358.4 GPixel/s |

| Texture Rate | 128.0 GTexel/s | 716.8 GTexel/s |

| FP32 | 4.096 TFLOPS | 22.94 TFLOPS |

| FP16 | 8.192 TFLOPS (2:1) | 45.88 TFLOPS (2:1) |

| TDP | 35 W | 230 W |

| Slot Width | MXM Module | Dual-slot |

| Power Connectors | none listed | 1x 8-pin |

| Suggested PSU | none listed | 550 W |

| Bus Interface | MXM-A (3.1) | PCIe 5.0 x16 |

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| Length | not listed | 267 mm |

| Height | not listed | 110 mm |

| Width | not listed | 39 mm |

| Release Date | 2023-01-23 | 2026-03-25 |

| Launch MSRP | none listed | 949 USD |

| Production Status | Active | not listed |